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LEAKING NEW FLUIDMASTER 400 BOTTOM ENTRY FROM PLASTIC CISTERN NUT.

Discussion in 'Plumbing and Central Heating' started by PHIL269, 22 Jun 2021.

  1. PHIL269

    PHIL269

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    Hi
    If anyone can give me any advise on how to stop a leak please ?

    I have just installed a new Fluidmaster 400 float valve bottom entry brass shank.

    It is now leaking with a drip from the bottom white plastic washer which fits onto the cistern.
    I made sure the rubber washer was put on cone end facing down inside the cistern but maybe I tightened it too much, worried about untightening now in case leak become worse.

    Not sure what to do now, do I remove it and start again, says hand tighten nut in instructions , I used a wrench and maybe tightened too much, would this of damaged rubber washer ? do I need to buy another valve ? Would sealant help ?

    Thanks for any help please




    Read more: https://www.diynot.com/diy/threads/leak-from-new-fluidmaster-400.573283/#ixzz6yV1XcFf1
     
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  3. HERTS P&D

    HERTS P&D

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    Why have you started another thread?

    Andy
     
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  4. PHIL269

    PHIL269

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    did not get a solution - need help
     
  5. HERTS P&D

    HERTS P&D

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    Did you take it off and refit it again?

    Andy
     
  6. PHIL269

    PHIL269

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    will try that tonight, but will that make a difference, could I of overtighned the plastic nut
     
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  8. PHIL269

    PHIL269

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    could the rubber conical washer be damaged ?
     
  9. HERTS P&D

    HERTS P&D

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    You would need to remove it to have a look.

    Andy
     
  10. PHIL269

    PHIL269

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    Thanks for the info, the leak is dripping down the brass shank from the plastic washer.
     
  11. HERTS P&D

    HERTS P&D

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    Faulty washer, cracked cistern or not tight enough.

    Andfy
     
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